Machine for molding blocks



Get. 11, 1932. a BERRY r 1,882,205

MACHINE FOR MOLDING' BLOCKS Filed Sept. 30, 1929 5 Sheets-Sheet 1 SimonBerry Oct. 11, 1932. 5 E Y 1,882,205

MACHINE FOR MOLDING BLOCKS Filed Sept. 30. 1929 5 Sheets-Sheet 2 Oct.11, 1932. 5 E R 1,882,205

MACHINE FOR MOLDING BLOCKS Filed Sept. 50. 1929 3 Sheets-Sheet 3 gwwmtozfillmazzfierrg v 'r a I Patented Oct. 11, 1932 MACHINE roe MOLDINGBLOCKS,

Application filed September 30,1929. Seria1No'.396,090. 1

My invention'relates to a machine for use in the molding of buildingblocks and the like.

My machine is intended to be used in the @molding of blocks of gypsum ofplaster of large amount of time and labor was con-' sumed in cleaning upthe mold parts after 18 removal of the blocks. It is preferable that:the blocks be cast on edge, for by so doing,

the. filler is more uniformly distributed throughout the blocks and alarger number of blocks can be cast at one time, but this "1 adds totherdifiiculty of forming the mold and cleaning and replacing the moldparts after use. It is myobject, then, to provide a mold wherein theseveral parts are so formed and arranged relative to each other thatthey can quickly be set up and as quickly taken apart, separated fromthe blocks, and cleaned.

A further object isthe provision of a mold of this type wherein the moldparts are so formed that they caniin general be taken down to allow theremoval of one block at a time'without' disturbance'of adjoining blocks,thus making the separation between the blocks and the mold walls acomparatively simple matter... p v V A further object is the provisionof a mold of this general type wherein the several parts may beconveniently and inexpensively manufactured, and wherein the severalparts are interconnected and mutually support each other. i

A further object is the provision of a molding machine of this characterwherein provision is made for obtaining relative movement of the moldand the rods which extend through the mold spaces to form the passagesrunning through the blocks, this motion being obtainedby movement ofthemold relative to the rods, .of the rods relative tovthe mold, oreither type of movement.-

UNITED STATES PATENT c smolv BERRY," or SEATTLE, WASHINGTON of Figure 2.

Other objects, and particularly refer more especiallyto details, ofconstruc-; tion, will be ascertained from a studyofthe,

drawings and specification forming part of this application. s V

In the accompanying drawings, l have,

My invention comprises thenovel parts; 6b and the novel combination andarrangement thereof as shown in the accompanying draw;

' ings, described in the specification, and as r by. he,

shown my lnvention in a form which is now preferred by me. v Figure l'isa plan view machine, parts being broken away.

Figure2 is a side elevation thereof,jparts;

being shown inlongitudinal section.

Figure 3 isa transverse Figure 4 is a detail in upper edge of the moldpart.

, Figure -5 1s a perspective view of the-mold table and-associatedparts,- certai'n thereof; being shown assembled and others being shownknocked down. 1

Essentially, my device consists of table, designated in general by thenumeral-'- 1, mold parts consisting of the longitudinal walls 2 and thetransverse walls Ssupported:

thereon, and rods 4:, preferably horizontal and arranged in verticalseries, of which there}:

may be several-series, side by side, these rods projecting through [themold spaces formed by'the walls 2 and 3. Meansare provided for causingrelative movementbetween the mold table 1 andthe rod 4, longi tudinallyof the rod, and to this endI may secure one end of therod in acrosshead40, the rod being guided for movement in; a template l1.vMovement 'of the crosshead 40 and rod 4 may be suitably caused,fas by apitman 42,,reciprocated slowly by a crank disk 43, the pitman beinghooked upon a pin 44: carried by the crosshead 4:0 and the crank disk 43being carried upon, a shaft 45, which is. turned througha worm gearand-pinion, illustrated at 46, from a motor. e7. :A'plurality ofsuclrcrossheads 40 may beconnected up-to a single motor,withinfthexcapacity of one unit section on the perspectiveof the motor,and in Figure 1 I have illustrated an arrangement whereby the rods fortwo mold units are driven from a single motor. The rods, of course,would be somewhat pointed at their ends as indicated at 48, to enablethem to enter aperturesprovided for them in the transverse platesB,these be ing designated by the numeral 34.-

Relative reciprocal movement between the mold and the rod 4 may beobtained by movein order to obtain proper registry; between which isshown as mounted. upouwheels 10,

tracks 11 'uponthe floor,- up on.wl1ich the wheels 10 are guidedifThe"longitudinal movement of the table relative to the rod 4,in-w'ithdrawingthe table by means of the tongue 12, maybe relied uponto'break the connection-tending to form between the rod 4' and theblocks in process of setting, orthis relative; movement may be-"a'ccomplished through the pitman l2, or-by both-of these i meanscombined.

Upon the table 1 is supported a false bottom l3, up on which aredirectly secured certain-of the mold walls," preferably the longi--tudinal walls 2. This connection is preferably a-hinge-like' connection:thus certain of the walls 2, preferably those near the out? sideof-anyparticular mold space, are directly hinged as indicated at 21, to thefalse bot tom 13. The wallat the inner side of any given mold space,which for convenience may be designated by the numeral 2, is prefer ablypermitted to raise slightly abovefthe: floor level-of the false bottom13 when the mold is being disassembled,and for this PHI"; pose a hookedrod 22'may extend downward ly, from the bottom edge of the wall 2 andthrough holes 14', provided at proper intervals in the false bottoml3.-As indicated in Figure 5, the several walls 2 or 2 are thrown downsubstantially horizontal when the mold'is disassembled durin'g removalof theblocks." V

"It will be note'dthatthe walls of adjacent mold spaces are themselvesspaced from one another. This enables'the walls of each mold space tobeseparated from the block uninfluenced by the'block in the adjacentmold, and'each wall of the mold space, at least-each of the longitudinalwalls 2 or 2 may be individually freed from the block within the mold;This,however,'necessitates' protecting the space between the mold spacesly, but with the longitudinal walls 2 and 2* c hinged to the bottom 13,it is not feasible to hinge the transverse wall 3, and they wouldportions 32 fitting between the opposite walls c v 2land 2" of a givenmold space and the porment of the-table l relativeto, the rod, and 1tionf31 extending about the end of the walls W V d 2 and 2' of adjoiningmold spaces. The secthe rod 4: and the apertures 34,-the table,

tions 32'carry the apertures 34, while the por- :,tions:31 maybegprovided with slots 33 for may be moved lengthwise of the rods 4 onthe reception of wedges 35 or like means whichmay bedriven through theseslots'to each other and to the transverse plates 3 uAs shown in thedrawings, the integral covers-23 ordinarily be formed to engage with theends fit'within the portions 31 to support and space the walls 2'. Inthis way allot the ,platesmutually support each other and the entiremold may be collapsed upon remov'alofthe endgplates' '3( r It isequallynecess ary to protect the-space between adj acent transverse plates 3,and to this end-cover plates.36 may beiprovided t'o closethese spaces;however, since it is:

customary to cover over the mold' spaces with plates such as 5, thecover plates 36 may be" hingedly secured-to the edge of acover-plate" 5asis" indicated at 37 (see Figures 1 and l). Such a mold will be easilysetup or knocked down, and the individual walls each defining asinglemold space may be readilyloose from the blocks; in fact, less thana minute is required to set'the block sufiiciently to permit removal ofthe'mold plates." Invconsequence, itisbut a short job to remove theseveral noldplates, remove the blocks, clean the" plates and again setthem up since thereis no necessity offitting parts to position and theynaturally fall into the positions they shouldassume i Such a-mold mayblocks withplaniform sides or edges, or they may-be employed for makingtongue and groove'blocksr They are illustrated arranged to 1nake tongueand groove blocks 'in the drawings, iandffor this purpose the coverplates 5 m'aybechanneled asis indicatedat- 50,*this forming the grooveat' the top edge of the bloc kf The plates 5 are hinged at 39 tothelongitudinal walls 2. In order'to'form the corresponding tongue at' thebottom edge of the block a channeled plate 6 and groove 60 may bedropped into the bottom of each mold space, alt has been found thatplacing the; blocks b e employed for making thus on edge and to a largeextent filling the mold space with the rods 4 has the'tendency to causethe filler,- Which is previously incorporated into; the plastic or=substantially liquid mass; to remain distributed through;

resists out the mold space. Even though such a fill-, er as sawdustorwood chips, which would ordinarily float, be employed, it will stillnot separate from the mass, andhence the process of casting the blockson edge as described, is superior to any process of which I am aware bywhich the blocks are cast flat, such as the process of my prior PatentNo. 1,698,120.

What I claim as myinvention is:

1. A block molding machine including a table and a plurality oflongitudinal walls and freely removable transverse end walls of saidlongitudinal walls to maintain the several molds spaced at all sidesfrom the other molds, hinged connections between the table and twoopposite longitudinal walls of each mold, the end walls being releasablysupported from the hingedly supported walls, and covers formed upon oneof said sets of walls to close the spaces between the molds.

4. A block molding machine as in claim 3, the longitudinal walls beinghingedly supported, and the covers-being formed as integral flangedextensions thereof.

5. A block molding machine as in claim 3, the longitudinal walls beinghingedly supported, and the transverse walls being channeled to fitbetween and properly space the longitudinal walls, constituting thespacer means. 7

6. In a block molding machine, a table, a

plurality of walls defining narrow mold spaces, horizontal rodsextending in vertical series through said mold spaces, and means iorcausing reciprocating movement of the rods relative to the mold walls,while thus disposed within the mold spaces.

7. In a block molding machine, a table, a pluralityof walls thereondefining parallel and aligned narrow mold spaces, horizontalrodsextendingin vertically arranged series through a plurality ofalignedmold spaces, and-extending therebeyond, and means for causingrelative longitudinal reciprocating movement of the rods and the moldwalls of less amplitude than the amount of extension of the rods beyondthe mold space. i

8. A block molding machine comprising a table, a series of parallelwalls hingedly sup- L portedthereon, a second'series of parallel walls"interspersed between and spaced from thewalls of the first set to formspaced=apart mold sp'aces,-end connecting walls associated therewith,and covers integral with said second series of parallel walls to coverthe spaces between adjacent mold spaces.

9. A block molding machine as in claim 8, the end connecting walls beingcommon to a plurality of parallel walls and likewise spaced apart toleave a space between adja-' cent blocks of molds, and covers fittingthe spaces between said end connecting walls.

plurality of walls thereon defining mold spaces, horizontal rodsextending throu h such mold spaces, means to reciprocate t e severalrods eachwithin its mold space, and

means permitting. movement of the table lengthwise of the rods to removethe rods from the mold spaces.

11. In a block molding machine, in combination, a table, a set ofparallel longitudi- 10. In a block molding machine, a table, a

nal walls hingedly supported thereon, covers formed integral therewith,spacingmeans to properly space and position said parallel wallscomprising channeled end walls abutting each end of a plurality of saidparallel longitudinal walls, and having inwardly and outwardlyprojecting vertical channels, said outwardly projecting channels adapted,to

snugly receive therein said longitudinal walls and said integral covers,the walls, covers and channels being formed andproportioned to holdsaidlongitudinal walls firmly in posi tion against longitudinalshoulders of said channeled end walls.

12. Ina block molding machine in com bination, a table, parallel wallssupported thereon, and sheet metal end walls bent to form a series ofvertical channel spaces, the

inwardly projecting portions forming the endwalls-of mold spaces, andthe outwardly pro ectnig portions adapted to receive and space the endsof said parallel walls.-

18. A block molding machine comprising a .table, a series of parallelwalls hingedly supported thereon, a'second series of parallel wallsinterspersed between and spaced from the walls of the first set toformspaced-apart mold spaces, said second series of walls havlngintegral covers to cover the spaces between the adjacent mold spaces,channeled .end walls common to a plurality of said parallel walls ateach end, and extending thereabove, the inward projecting portions ofsaid channeled end walls being opposite and forming the end walls of themold spaces,

and each pair of adjacent parallel walls, one

from each or said series, being adapted to fit within the outwardlyprojecting portions of said end walls, and pegs tosupport the walls ofthe first series against parallel faces of said end walls, the integralcover of the other parallel wall fitting closely within the out Wardlyprojecting pbrtion of ,the end Walls ltd hold the latter. parallel'wall. against the parallel face in said end wall opposite to the firstmentioned parallel face, V

isigned at Seattl, Wa'Sh' igtOn, thls 19th, i day of August, 1929. 1 V vSIMON B RRY;

